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A (No Modem' 2 sheets-sheet 1. i G. E. SMlTH. RAIL BENDING MACHINE.

No. 558,706. l15am-matedApr. 21, 1.896.

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(No Model.) 2 sheets-sheet 2.

` G. E. SMITH, RAIL BENDING MACHINE.

No. 558,706. Patented Apr. 21, 1896.

Nimh Srarrns GEORGE E. SMITH, OF SHERBROOKE, CANADA.

RAIL-BEND'ING MACHINE.

SPECIFICATION forming part of Letters Patent No. 558,706, dated April21, 1896.

t t Application led DecemherlO, 1895. Serial No. 571,688. (No model.)

To all whom, it may concern.'

Beit known that I, GEORGE E. SMITH, of Sherbrooke, in the Province ofQuebec and Dominion of Canada, have invented certain new and usefulImprovements in Rail-Bending Machines; and I do hereby declare that thefollowing is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to letters and figures of reference marked thereon,

-tal ones to vertical ones.

which form a part of this specification.

The present invention is a further improvement on my Patent No; 537,790,dated April l0, 1395, and it adapts the machine the better for bendingrails for street-railways, rather than those for steam-railroadwork. Thegeneral operations and functions of the machine are similar to those insaid patent. Instead of connecting the middle adjustable bending-rollerwith a vertical threaded bar or rod, as in that patent, and actuating itby toothed gearing, a hydraulic jack is in my present inventionconnected to the cross -head or socket-piece; and the remainder of themachine, While it is in the main like in my patent, has its bed orbaseas if that machine were turned over and rested on one of its sides, thuschanging the positions of its several vertical shafts to horizontal onesand of the horizon- In my present improvement the bar or rod above namedis not pulled up or lifted as in the patent in order to raise the middleroller, but on the contrary is pushed forward and pulled backwardhorizontally to effect its needed adjustments by means of said hydraulicjack, which is placed horizontally.

In the drawings, Figure 1 illustrates in plan view suflicient of amachine to show my improvements embodied therein, and showing the jackin the head of the machine in place of a gear; Fig. 2, a verticalsection through a part of the frame of the machine, and showing thehydraulic jack applied, the socketpiece or cross-head being shown in adifferent position in its guides 5 and Fig. 3,a detail showing inelevation a portion of the'machine.

A is the frame of the machine, and A the hydraulic jack and reservoir,A2 indicating its lowering-valve, and A3 its pump-handle,

and which, being Well-known features in jacks, need no furtherdescription.

A6 is the ram of the jack, firmly securedto a cross-head or socket-pieceA, which is applied as shown, to be moved as needed in the guides A5 inthe frame A.

O is a vertical shaft carrying the large gear D, and also beneath thisgear the middle friction bending-roll 3*, which, with its shaft O, isadjustable relatively to the stationary rolls 3 3, in order to vary, asmay be needed, the degree of curve or bending to be imparted to the railto be treated.

In Fig. l the top or tread of a rail is shown in dotted lines in itspassage through the machine, the rolls 3 3 being at one side of it, andthe roll 3* at its opposite side, but at the same height as the othertwo.

E is the pinion on a vertical shaft P, which latter is driven bybevel-gears J and J5, gear J being on shaft P, and J on a horizontalpower-shaft F, which shaft is driven by the agency of one of the pulleysG G, one of Which is fast and the other loose. p

Il is a bracket-box bolted, as seen in Fig. l, on the frame A.

H- I-I are rollers mounted in vertically-adjustable eyebolts I I, andserve to facilitate the passage of the rail through the machine.

K is a sliding box on the vertical shaft C.

N is a bridge-tree carrying the boxes :for supporting the horizontalshaft F and the vertical shaft P.

It will now be seen that my desired position of roll relatively to thetwo rolls 3 3 may be obtained according to or determined by the amountof force or pressure given by the ram or piston-rod A6 of the jack A' tothe crosshead A4, the resisting force of the water in the ram beingcontrolled in a Well-known manner by means of the pump-handle A8 andlowering-valve.

l. In combination with two non-driving and non-adjustable verticalrolls, the adjustable power-driven shaft O and its rail-feeding roll 3*,the guides A5 in the frame, the socketpiece A4, and a hydraulic ramserving to adjust the only feeding-roll 3* to give the required degreeof pressure for bending the rail in aline or direction midway betweenthe two non-adjustable rolls.

IOO

2. In a machine adapted for bending street-- railway rails to a curveand for delivering the bent rails therefrom in a horizontal plane, thecombination of two stationary rolls each on a vertical, gearless shaftin non adjustable boxes and revolved only by the friction of the fedrail, a hydraulic jack, a middle bending'- roll on a power-drivenVertical shaft mounted in a cross-head adjustable in horizontal guidesating such driven gear.

GEO. E. SMITH. fitnessesy ED. OROURKE, JAS. R. JACKSON.

